Ask a New Question
Search
Asked by
andre
Solve the equation using exact values. Check for any extraneous roots. 9^2x+4(9^x)=21.
Answers
Answers
Answered by
Steve
(9^x)^2 + 4(9^x) - 21 = 0
(9^x + 7)(9^x - 3) = 0
...
Related Questions
Related
Solve the equation for exact values of x. sin(x) = 1-2(sin(x))^2
solve for exact value for x between 0 and 2 pie 3sin2(x)-cos2=2?
Solve the equation for exact solutions over the interval [0, 2pi]. 4 cotx+2=-2
Which equation shows an exact computation? A. 12/7 = 1.714 B. 2π = 44/7 C. 22/7x14 = 44 D. 2√2 =...
solve equation for exact solution if possible leave answer in degree sinx/2=square root of 2- sin...
solve equation for the exact solutions if possible put answer in degrees. 2tanx/3-tan^2x=1
Solve the equation for exact solutions in the interval 0 ≤ x < 2π. (Enter your answers as a comma-se...
Solve each equation for exact solutions over the interval [0,360)where appropriate. Round approximat...
Solve for exact or to 1d.p of x E [0 ,2pi] 4cos^2x-3
Solve the equation system exactly. 21x + 6y = 7 7x + 3y = 3 What does it mean equation system?...